Nitric acid solution (HNO3), is an oxidizingacid (depletes electron from the metal surface) which erodes the metal.
硝酸溶液（HNO3）是氧化性酸（去除材料表面的电子），它可以腐蚀材料。
2
But it can be strong oxidizingacid such as sulfuric acid, nitric acid corrosion and is not applicable to the occasion of aromatics and chlorinated hydrocarbon touch.
可是它能够被浓氧化酸如浓硫酸、浓硝酸所腐蚀而且也不适用与芳香烃、氯化烃触摸的场合。
3
The leaching rates of vanadium of oxidizingacid leaching at atmospheric pressure and oxidizingacid pressure leaching were studied separately by contrasting conclusion.